The main advantage to the World Wide Web is the ability to link to other documents
on the Web. For example, if you had a page that detailed local zoning laws, you might
want to include a link to a local government site where additional information could
be found. A link typically appears as underlined text and is often rendered in a
different color than normal text.
 For example, a link might appear in a browser as follows:
More information can be found here.
The word here is linked to the other document—when the user clicks the word, the
user’s browser displays the specified page.
Create links by using the anchor tag, <a>. At its simplest level, this tag takes one
argument-the page to link to-and surrounds the text to be linked. The preceding
example could be created with the following code:

The href, or Hypertext REFerence attribute of the anchor tag, specifies the protocol
and destination of the link. The example specifies http:// because the destination
is a Web page to be delivered via the HTTP protocol. Other protocols (such as
ftp:// or mailto:) can also be used where appropriate.
Additional attributes can be used with the anchor tag to specify such things as
where the new document should be opened (for example, in a new browser window),
the relationship between the documents, and the character set used in the linked
document.
You can also use a variant of the anchor tag to mark specific places in the current
document. A link can then be placed elsewhere in the document that can take the
user to the specific place.
For example, consider this HTML code:

For more information see <a href-"#Chapt2">Chapter 2</a>
. . . More HTML . . .
<a name-"Chapt2">Chapter 2</a>